import { request } from "../../request/index.js";
import regeneratorRuntime from "../../lib/runtime/runtime";
Page({

  /**
   * 页面的初始数据
   */
  data: {
    goodsObj: {},
    isCollect: false
  },

  GoodsInfo: {},
  /** 
   * 生命周期函数--监听页面加载
   */
  onShow: function () {
    let pages = getCurrentPages();
    let currentPage = pages[pages.length - 1];
    let options = currentPage.options;
    const { goods_id } = options;
    this.getGoodsDetail(goods_id);

  },

  async getGoodsDetail(goods_id) {
    const goodsObj = await request({ url: "/goods/detail", data: { goods_id } });
    this.GoodsInfo = goodsObj
    let collect = wx.getStorageSync("collect") || [];
    let isCollect = collect.some(v => v.goods_id === this.GoodsInfo.goods_id)
    this.setData({
      goodsObj: {
        goods_name: goodsObj.goods_name,
        goods_price: goodsObj.goods_price,
        goods_introduce: goodsObj.goods_introduce.replace(/\.webp/g, '.jpg'),
        pics: goodsObj.pics
      },
      isCollect
    })
  },
  //点击大图预览
  handlePreviewImage(e) {
    const urls = this.GoodsInfo.pics.map(v => v.pics_mid)
    const current = e.currentTarget.dataset.url
    wx.previewImage({
      current,
      urls,
    })
  },
  //添加进购物车
  handleCartAdd() {
    let cart = wx.getStorageSync("cart") || [];
    let index = cart.findIndex(v => v.goods_id === this.GoodsInfo.goods_id)
    if (index === -1) {
      this.GoodsInfo.num = 1
      this.GoodsInfo.checked = true
      cart.push(this.GoodsInfo);
    } else {
      cart[index].num++;
    }

    wx.setStorageSync("cart", cart);
    wx.showToast({
      title: '加入成功',
      icon: 'success',
      mask: true,
    });
  },
  //点击 商品收藏图标
  handleCollect() {
    let isCollect = false;
    let collect = wx.getStorageSync("collect") || [];
    let index = collect.findIndex(v => v.goods_id === this.GoodsInfo.goods_id)
    if (index !== -1) {
      collect.splice(index, 1)
      isCollect = false
      wx.showToast({
        title: '取消成功',
        icon: 'success',
        mask: true
      });
    } else {
      collect.push(this.GoodsInfo)
      isCollect = true
      wx.showToast({
        title: '收藏成功',
        icon: 'success',
        mask: true
      });
    }
    wx.setStorageSync("collect", collect);
    this.setData({ isCollect })
  }
})